US6220759B1 - Positioning pivot - Google Patents

Positioning pivot Download PDF

Info

Publication number
US6220759B1
US6220759B1 US09/382,617 US38261799A US6220759B1 US 6220759 B1 US6220759 B1 US 6220759B1 US 38261799 A US38261799 A US 38261799A US 6220759 B1 US6220759 B1 US 6220759B1
Authority
US
United States
Prior art keywords
collar
helical
sleeve
positioning pivot
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US09/382,617
Inventor
Sheng-nan Lu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US09/382,617 priority Critical patent/US6220759B1/en
Application granted granted Critical
Publication of US6220759B1 publication Critical patent/US6220759B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1681—Details related solely to hinges
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
    • G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • E05D11/02—Lubricating arrangements
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/60—Application of doors, windows, wings or fittings thereof for other use
    • E05Y2900/606—Application of doors, windows, wings or fittings thereof for other use for electronic devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S384/00—Bearings
    • Y10S384/90—Cooling or heating
    • Y10S384/906—Antirotation key

Definitions

  • the present invention generally relates to a positioning pivot, and more particularly to a positioning pivot which is able to provide a proper friction caused by the rotation of the sleeves securely received within the collar of the positioning pivot.
  • a conventional positioning pivot comprises a shaft ( 90 ) having a first portion ( 92 ) with at least one first through holes ( 93 ) to connect with an object and a second portion ( 94 ) with a helical groove ( 96 ) defined on the surface.
  • a hinge butt ( 80 ) includes at least one collar ( 82 ) and an extension ( 84 ) integrally formed therewith.
  • the extension ( 84 ) of the hinge butt ( 80 ) has at least one second through hole ( 86 ) defined therein.
  • the second portion ( 94 ) of the shaft ( 90 ) is rotatably received within the collar ( 82 ) of the hinge butt ( 80 ), after the first through hole ( 93 ) is securely connected to an object, such as a screen (not shown), and the second through hole ( 86 ) of the extension ( 84 ) is securely connected to a computer (not shown).
  • the positioning pivot of this type can indeed provide a pivot effect to the objects which the positioning pivot connects with.
  • the friction between the second portion ( 94 ) of the shaft ( 90 ) and the collar ( 82 ) will gradually enlarge the clearance therebetween and thus causes a loose connection.
  • a helical lubrication groove ( 96 ) is defined in the outer periphery of the second portion ( 94 ) of the shaft ( 90 ) and lubricant (not shown) will thus be spread from the lubrication groove ( 96 ) to the surface of the second portion ( 94 ). Therefore, the friction between the second portion ( 94 ) of the shaft ( 90 ) and the collar ( 82 ) of the hinge butt ( 80 ) is greatly reduced after the second portion ( 94 ) is inserted into the collar ( 82 ).
  • the lubricant spread onto the surface of the second portion ( 94 ) of the shaft ( 90 ) can only lubricate part thereof because the rotation between the collar ( 82 ) and the second portion ( 94 ) is limited within a certain arc of rotation.
  • the positioning pivot also has a shaft ( 90 ) with a first portion ( 92 ) that has at least one first through hole ( 93 ) for connecting the positioning pivot to an object, such as a screen (not shown), and a second portion ( 94 ) with a helical lubrication groove ( 96 ) defined in the surface.
  • the positioning pivot further has at least one sleeve ( 70 ) having at least one protrusion ( 72 ) formed on an outer peripheral wall thereof, a helical slit ( 73 ) defined therein and a hinge butt ( 80 A) having at least one collar ( 82 ) provided with at least one cutout ( 83 ) defined to correspond to the at least one protrusion ( 72 ) and an extension ( 84 ) integrally formed therewith and provided with at least one second through hole ( 86 ) for connecting with an object, such as a computer (not shown).
  • the helical slit ( 73 ) of the sleeve ( 70 ) is oriented opposite to the orientation of the helical groove ( 96 ) of the second portion ( 94 ) of the shaft ( 90 ), such that lubricant in the helical groove ( 96 ) of the second portion ( 94 ) is able to be dispersed to a larger portion when the shaft ( 90 ) is rotated manually by a user.
  • a positioning pivot constructed in accordance with the present invention tends to mitigate and/or obviate the aforementioned problems.
  • the main objective of the invention is to provide a positioning pivot, which is able to expand the lubrication effect between the inner parts thereof and thus prolong its life span.
  • Another objective of the invention is to provide a positioning pivot that is able to provide the proper friction between the second portion of the shaft and the sleeve so that a user is able to position the screen at any desired angle.
  • FIG. 1 is an exploded perspective view of the positioning pivot in accordance with the present invention
  • FIG. 2 is side plan view partially cross-sectional of the assembled positioning pivot in FIG. 1;
  • FIG. 3 is an exploded perspective view of another preferred embodiment of the positioning pivot in accordance with the present invention.
  • FIG. 4 is an exploded perspective view of still another preferred embodiment of the invention.
  • FIG. 5 is an exploded perspective view of a conventional positioning pivot
  • FIG. 6 is an exploded perspective view of another conventional positioning pivot.
  • the positioning pivot in accordance with the present invention comprises a shaft ( 10 ) having a first portion ( 11 ) with at least one through hole ( 111 ), a second portion ( 12 ) having a first helical groove ( 14 ) defined on the outer periphery and a third portion ( 13 ) having a second helical groove ( 15 ) defined on the outer periphery.
  • the second portion ( 12 ) has a diameter larger than that of the third portion ( 13 ).
  • the positioning pivot of the present invention further has a C-shaped sleeve ( 30 ) pivotally mounted around the third portion ( 13 ) and provided with a first helical slit ( 34 ) peripherally defined therein and at least one protrusion ( 36 ) formed on the outer peripheral wall.
  • a hinge butt ( 20 ) has a C-shaped first collar ( 21 ), a C-shaped second collar ( 22 ) and an extension ( 23 ) integrally formed therewith.
  • the first collar ( 21 ) is aligned with the second collar ( 22 ) and has a second helical slit ( 25 ) defined through the periphery thereof.
  • the second collar ( 22 ) has at least one cutout ( 26 ) defined to correspond to the protrusion ( 36 ) of the sleeve ( 30 ).
  • the second portion ( 12 ) of the shaft ( 10 ) is pivotally received in the first collar ( 21 ), and the sleeve ( 30 ) is securely received in the second collar ( 22 ) after the third portion ( 13 ) is pivotally received in the sleeve ( 30 ).
  • the first helical slit ( 34 ) of the sleeve ( 30 ) is oriented opposite to the orientation of the second helical groove ( 15 ) of the third portion ( 13 ), and the second helical slit ( 25 ) of the first collar ( 21 ) is oriented opposite to the orientation of the first helical groove ( 14 ) of the second portion ( 12 ) of the shaft ( 10 ), such that the lubrication effect between the second portion ( 12 ) and the first collar ( 21 ) and between the sleeve ( 30 ) and the third portion ( 13 ) will be able to provide the proper friction for the user to position an object, such as a screen, at the desired angle.
  • an object such as a screen
  • the first helical slit ( 34 ) and the second helical slit ( 25 ) are respectively defined through the periphery of the sleeve ( 30 ) and the first collar ( 21 ).
  • the first helical slit ( 34 A) and the second helical slit ( 25 A) are defined in the periphery of the sleeve ( 30 ) and the first collar ( 21 ) respectively.
  • the third portion ( 13 ) further has a blind hole ( 16 ) longitudinally defined therein and a slit ( 17 ) defined to communicate with the blind hole ( 16 ).
  • the friction between the third portion ( 13 ) and the sleeve ( 30 ) will enlarge the clearance therebetween.
  • an adjusting plug ( 18 ) is inserted into the blind hole ( 16 ) of the third portion ( 13 ). The insertion of the adjusting plug ( 18 ) into the blind hole ( 16 ) will expand the third portion ( 13 ) and thus regain the proper friction.
  • the orientation of the first helical groove ( 14 ) and the second helical slit ( 25 ) is different and the orientation of the second helical groove ( 15 ) and the first helical slit ( 34 ) is also different, when the third portion ( 13 ) is pivoted in the sleeve ( 30 ) and the second portion ( 12 ) is pivoted in the first collar ( 21 ), the lubricant will be dispersed over a larger area than that of the conventional one.

Abstract

A positioning pivot including a shaft having a first portion, a second portion and a third portion, a sleeve and a hinge butt and is able to prolong its life span by inserting the third portion into the sleeve and the second portion into a first collar of the hinge butt. With the helical grooves defined in the second and the third portions, the helical slits defined in the sleeve and the first collar are able to disperse the lubricant over a larger area and thus provide the proper friction therebetween.

Description

This is a continuation-in-part of Ser. No. 08/744,651, filed Nov. 6, 1996, now the U.S. Pat. No. 5,713,672, issued to Sheng-nan Lu on Feb. 3, 1998. The specification thereof is hereinafter incorporated for reference.
FIELD OF THE INVENTION
The present invention generally relates to a positioning pivot, and more particularly to a positioning pivot which is able to provide a proper friction caused by the rotation of the sleeves securely received within the collar of the positioning pivot.
BACKGROUND OF THE INVENTION
Positioning pivots are commonly used in many casing structures such as notebook computers. As shown in FIG. 5, a conventional positioning pivot comprises a shaft (90) having a first portion (92) with at least one first through holes (93) to connect with an object and a second portion (94) with a helical groove (96) defined on the surface. A hinge butt (80) includes at least one collar (82) and an extension (84) integrally formed therewith. The extension (84) of the hinge butt (80) has at least one second through hole (86) defined therein. The second portion (94) of the shaft (90) is rotatably received within the collar (82) of the hinge butt (80), after the first through hole (93) is securely connected to an object, such as a screen (not shown), and the second through hole (86) of the extension (84) is securely connected to a computer (not shown). The positioning pivot of this type can indeed provide a pivot effect to the objects which the positioning pivot connects with. However, the friction between the second portion (94) of the shaft (90) and the collar (82) will gradually enlarge the clearance therebetween and thus causes a loose connection. In order to mitigate the above mentioned problem, a helical lubrication groove (96) is defined in the outer periphery of the second portion (94) of the shaft (90) and lubricant (not shown) will thus be spread from the lubrication groove (96) to the surface of the second portion (94). Therefore, the friction between the second portion (94) of the shaft (90) and the collar (82) of the hinge butt (80) is greatly reduced after the second portion (94) is inserted into the collar (82).
Nevertheless, the lubricant spread onto the surface of the second portion (94) of the shaft (90) can only lubricate part thereof because the rotation between the collar (82) and the second portion (94) is limited within a certain arc of rotation.
To enhance the lubrication effect between the second portion (94) and the collar (82), as shown in FIG. 6, a new type of positioning pivot is introduced.
The positioning pivot also has a shaft (90) with a first portion (92) that has at least one first through hole (93) for connecting the positioning pivot to an object, such as a screen (not shown), and a second portion (94) with a helical lubrication groove (96) defined in the surface. The positioning pivot further has at least one sleeve (70) having at least one protrusion (72) formed on an outer peripheral wall thereof, a helical slit (73) defined therein and a hinge butt (80A) having at least one collar (82) provided with at least one cutout (83) defined to correspond to the at least one protrusion (72) and an extension (84) integrally formed therewith and provided with at least one second through hole (86) for connecting with an object, such as a computer (not shown). The helical slit (73) of the sleeve (70) is oriented opposite to the orientation of the helical groove (96) of the second portion (94) of the shaft (90), such that lubricant in the helical groove (96) of the second portion (94) is able to be dispersed to a larger portion when the shaft (90) is rotated manually by a user. Accordingly, after the sleeve (70) is inserted into the hinge butt (80A) to have the at least one protrusion (72) received in the cutout (83) and securely retained therein, there will be no relative movement between the collar (82) and the sleeve (70), but between the sleeve (70) and the second portion (94) of the shaft (90). After assembly, the lubrication effect of the structure as shown in FIG. 5 is not satisfied, however, the lubrication effect of the structure as shown in FIG. 6 provides a smooth pivot between the shaft (90) and the hinge butt (80A). However, the structure as shown in FIG. 6 provides more lubrication than necessary, such that the screen may fall to the computer base during operation. In order to provide a positioning pivot, which is able to provide a moderate lubrication effect, alternation or modification to the present structure is necessary.
From the previous description, it is noted that a positioning pivot as described above is not able to fulfill the practical requirements.
Thus, a positioning pivot constructed in accordance with the present invention tends to mitigate and/or obviate the aforementioned problems.
SUMMARY OF THE INVENTION
The main objective of the invention is to provide a positioning pivot, which is able to expand the lubrication effect between the inner parts thereof and thus prolong its life span.
Another objective of the invention is to provide a positioning pivot that is able to provide the proper friction between the second portion of the shaft and the sleeve so that a user is able to position the screen at any desired angle.
Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an exploded perspective view of the positioning pivot in accordance with the present invention;
FIG. 2 is side plan view partially cross-sectional of the assembled positioning pivot in FIG. 1;
FIG. 3 is an exploded perspective view of another preferred embodiment of the positioning pivot in accordance with the present invention;
FIG. 4 is an exploded perspective view of still another preferred embodiment of the invention;
FIG. 5 is an exploded perspective view of a conventional positioning pivot; and
FIG. 6 is an exploded perspective view of another conventional positioning pivot.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
With reference to FIGS. 1 and 2, the positioning pivot in accordance with the present invention comprises a shaft (10) having a first portion (11) with at least one through hole (111), a second portion (12) having a first helical groove (14) defined on the outer periphery and a third portion (13) having a second helical groove (15) defined on the outer periphery. The second portion (12) has a diameter larger than that of the third portion (13). The positioning pivot of the present invention further has a C-shaped sleeve (30) pivotally mounted around the third portion (13) and provided with a first helical slit (34) peripherally defined therein and at least one protrusion (36) formed on the outer peripheral wall. A hinge butt (20) has a C-shaped first collar (21), a C-shaped second collar (22) and an extension (23) integrally formed therewith. The first collar (21) is aligned with the second collar (22) and has a second helical slit (25) defined through the periphery thereof. The second collar (22) has at least one cutout (26) defined to correspond to the protrusion (36) of the sleeve (30). The second portion (12) of the shaft (10) is pivotally received in the first collar (21), and the sleeve (30) is securely received in the second collar (22) after the third portion (13) is pivotally received in the sleeve (30). The first helical slit (34) of the sleeve (30) is oriented opposite to the orientation of the second helical groove (15) of the third portion (13), and the second helical slit (25) of the first collar (21) is oriented opposite to the orientation of the first helical groove (14) of the second portion (12) of the shaft (10), such that the lubrication effect between the second portion (12) and the first collar (21) and between the sleeve (30) and the third portion (13) will be able to provide the proper friction for the user to position an object, such as a screen, at the desired angle. Referring to FIG. 2, the first helical slit (34) and the second helical slit (25) are respectively defined through the periphery of the sleeve (30) and the first collar (21). With reference to FIGS. 3, it is noted that the first helical slit (34A) and the second helical slit (25A) are defined in the periphery of the sleeve (30) and the first collar (21) respectively. With reference to FIG. 4, it is noted that the third portion (13) further has a blind hole (16) longitudinally defined therein and a slit (17) defined to communicate with the blind hole (16). After a period of time of using the invention, the friction between the third portion (13) and the sleeve (30) will enlarge the clearance therebetween. To overcome the loose connection between the third portion (13) and the sleeve (30), an adjusting plug (18) is inserted into the blind hole (16) of the third portion (13). The insertion of the adjusting plug (18) into the blind hole (16) will expand the third portion (13) and thus regain the proper friction.
It is concluded that the positioning pivot of the invention has the following advantages:
Better Lubrication
Because the orientation of the first helical groove (14) and the second helical slit (25) is different and the orientation of the second helical groove (15) and the first helical slit (34) is also different, when the third portion (13) is pivoted in the sleeve (30) and the second portion (12) is pivoted in the first collar (21), the lubricant will be dispersed over a larger area than that of the conventional one.
From the foregoing, it is seen that the objects previously set forth may readily and efficiently be attained, and since certain changes may be made in the above construction and different embodiments of the invention without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

Claims (5)

What is claimed is:
1. A positioning pivot comprising
a shaft provided with a first portion at one end thereof, and a second portion on the other end thereof the second portion having a first helical groove defined therein and a third portion formed on the free end thereof and provided with a second helical groove defined in a periphery thereof;
a sleeve having the third portion of the shaft pivotally received therein and provided with at least one protrusion and a first helical slit; and
a hinge butt having a first collar pivotally receiving the second portion of the shaft therein and with a second helical slit, a second collar securely receiving the sleeve therein and an extension integrally formed therewith and provided with at least one through hole;
the first portion having at least one through hole defined therein;
the orientation of the first helical groove and the second helical slit being differently orientated and the orientation of the second helical groove and the first helical slit being differently orientated.
2. The positioning pivot as claimed in claim 1, wherein the third portion of the shaft is configured to have a blind hole longitudinally defined therein.
3. The positioning pivot as claimed in claim 2 further comprising an adjusting device, which is able to be inserted into the blind hole of the shaft to enlarge the diameter thereof.
4. The positioning pivot as claimed in claim 1, where the first helical slit is peripherally defined in the sleeve and the second helical slit is defined through the face of the first collar.
5. The positioning pivot as claimed in claim 1, wherein the first helical slit is defined through the face of the sleeve and the second helical slit is peripherally defined in the face of the first collar.
US09/382,617 1996-11-06 1999-08-25 Positioning pivot Expired - Fee Related US6220759B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US09/382,617 US6220759B1 (en) 1996-11-06 1999-08-25 Positioning pivot

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/744,651 US5713672A (en) 1996-11-06 1996-11-06 Positioning pivot
SG9805007A SG86340A1 (en) 1996-11-06 1998-11-27 Positioning pivot
US09/382,617 US6220759B1 (en) 1996-11-06 1999-08-25 Positioning pivot

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US08/744,651 Continuation-In-Part US5713672A (en) 1996-11-06 1996-11-06 Positioning pivot

Publications (1)

Publication Number Publication Date
US6220759B1 true US6220759B1 (en) 2001-04-24

Family

ID=26665188

Family Applications (2)

Application Number Title Priority Date Filing Date
US08/744,651 Expired - Fee Related US5713672A (en) 1996-11-06 1996-11-06 Positioning pivot
US09/382,617 Expired - Fee Related US6220759B1 (en) 1996-11-06 1999-08-25 Positioning pivot

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US08/744,651 Expired - Fee Related US5713672A (en) 1996-11-06 1996-11-06 Positioning pivot

Country Status (2)

Country Link
US (2) US5713672A (en)
SG (1) SG86340A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060117530A1 (en) * 2004-12-07 2006-06-08 Shin Zu Shing Co. Ltd. Hinge for a notebook computer
US20060277718A1 (en) * 2004-10-08 2006-12-14 Nelson Kenneth W Hinge motion check friction device, methods incorporating the device, and uses thereof
US20070169314A1 (en) * 2006-01-05 2007-07-26 Jarllytec Co., Ltd. Rotating shaft structure
US20070199180A1 (en) * 2006-02-24 2007-08-30 Chia-Hui Chen Forked spring tube
US20080148520A1 (en) * 2006-12-21 2008-06-26 Jr-Jiun Chern Hinge for laptop computer
CN104989200A (en) * 2015-07-15 2015-10-21 沈红如 Safety hinge for security door
CN105570293A (en) * 2016-03-09 2016-05-11 娄底市佳华机械有限公司 Multi-layer oil film sliding bearing

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5713672A (en) * 1996-11-06 1998-02-03 Lu; Sheng-Nan Positioning pivot
SG80065A1 (en) * 1999-08-26 2001-04-17 Lu Sheng Nan Positioning pivot
US6917726B2 (en) * 2001-09-27 2005-07-12 Cornell Research Foundation, Inc. Zero-mode clad waveguides for performing spectroscopy with confined effective observation volumes
US6507977B2 (en) * 2001-04-02 2003-01-21 Lu Sheng-Nan Computer hinge
US6622344B1 (en) * 2002-06-06 2003-09-23 Lu Sheng-Nan Pivot hinge
US6711782B1 (en) * 2002-12-03 2004-03-30 Sinher Technology Inc. Duplex opposite friction hinge
WO2006058221A2 (en) 2004-11-24 2006-06-01 Abdou Samy M Devices and methods for inter-vertebral orthopedic device placement
TWM296399U (en) * 2006-02-22 2006-08-21 Wei-Jie Juang Sleeved rotating shaft
TW200918774A (en) * 2007-10-26 2009-05-01 Jarllytec Co Ltd Torque adjusting configuration for shaft device, adjusting member and method for the same
US20100087858A1 (en) * 2008-09-18 2010-04-08 Abdou M Samy Dynamic connector for spinal stabilization and method of use
US8764806B2 (en) 2009-12-07 2014-07-01 Samy Abdou Devices and methods for minimally invasive spinal stabilization and instrumentation
TWM386741U (en) * 2010-03-30 2010-08-11 Hon Hai Prec Ind Co Ltd Hinge
US8845728B1 (en) 2011-09-23 2014-09-30 Samy Abdou Spinal fixation devices and methods of use
US20130226240A1 (en) 2012-02-22 2013-08-29 Samy Abdou Spinous process fixation devices and methods of use
US9198767B2 (en) 2012-08-28 2015-12-01 Samy Abdou Devices and methods for spinal stabilization and instrumentation
US9320617B2 (en) 2012-10-22 2016-04-26 Cogent Spine, LLC Devices and methods for spinal stabilization and instrumentation
CN204186787U (en) * 2014-09-11 2015-03-04 杭州安费诺飞凤通信部品有限公司 A kind of cover-turning hinge of portable type electronic product and portable type electronic product
WO2017003927A1 (en) 2015-06-30 2017-01-05 Saint-Gobain Performance Plastics Corporation Plain bearing
CN105041843B (en) * 2015-08-14 2019-02-05 联想(北京)有限公司 A kind of shaft
US10857003B1 (en) 2015-10-14 2020-12-08 Samy Abdou Devices and methods for vertebral stabilization
US10744000B1 (en) 2016-10-25 2020-08-18 Samy Abdou Devices and methods for vertebral bone realignment
US10973648B1 (en) 2016-10-25 2021-04-13 Samy Abdou Devices and methods for vertebral bone realignment
US11179248B2 (en) 2018-10-02 2021-11-23 Samy Abdou Devices and methods for spinal implantation
CN113309781B (en) * 2020-02-27 2023-01-17 福立旺精密机电（中国）股份有限公司 Spiral rotating shaft and machining method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5713672A (en) * 1996-11-06 1998-02-03 Lu; Sheng-Nan Positioning pivot
US6039399A (en) * 1998-09-03 2000-03-21 Fisher Dynamics Corporation Linear seat recliner

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3428345A (en) * 1966-05-12 1969-02-18 Chrysler Corp Joint assembly for vehicle steering linkage
JPH0830501B2 (en) * 1988-06-07 1996-03-27 日産自動車株式会社 Bearing fixing device
US4840498A (en) * 1988-06-28 1989-06-20 Sundstrand Corp. Self-aligning journal bearing
US5536090A (en) * 1995-03-15 1996-07-16 Reliance Electric Industrial Company Expansion bearing having improved lubrication arrangement

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5713672A (en) * 1996-11-06 1998-02-03 Lu; Sheng-Nan Positioning pivot
US6039399A (en) * 1998-09-03 2000-03-21 Fisher Dynamics Corporation Linear seat recliner

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060277718A1 (en) * 2004-10-08 2006-12-14 Nelson Kenneth W Hinge motion check friction device, methods incorporating the device, and uses thereof
US7487572B2 (en) * 2004-10-08 2009-02-10 E.I. Du Pont De Nemours & Company Hinge motion check friction device, methods incorporating the device, and uses thereof
US20060117530A1 (en) * 2004-12-07 2006-06-08 Shin Zu Shing Co. Ltd. Hinge for a notebook computer
US7124473B2 (en) * 2004-12-07 2006-10-24 Shin Zu Shing Co., Ltd. Hinge for a notebook computer
US20070169314A1 (en) * 2006-01-05 2007-07-26 Jarllytec Co., Ltd. Rotating shaft structure
US20070199180A1 (en) * 2006-02-24 2007-08-30 Chia-Hui Chen Forked spring tube
US20080148520A1 (en) * 2006-12-21 2008-06-26 Jr-Jiun Chern Hinge for laptop computer
CN104989200A (en) * 2015-07-15 2015-10-21 沈红如 Safety hinge for security door
CN104989200B (en) * 2015-07-15 2016-08-17 王鼎兴 Safe hinge for antitheft door
CN105570293A (en) * 2016-03-09 2016-05-11 娄底市佳华机械有限公司 Multi-layer oil film sliding bearing

Also Published As

Publication number Publication date
US5713672A (en) 1998-02-03
SG86340A1 (en) 2002-02-19

Similar Documents

Publication Publication Date Title
US6220759B1 (en) Positioning pivot
US6321416B1 (en) Hinge for a notebook computer
KR100348824B1 (en) tilt hinge
US6671927B2 (en) Rotating mechanism for LCD monitor
US6223393B1 (en) Redundant hinge element for a notebook computer
US20060272128A1 (en) Friction hinge with angularly dependent torque
US6163928A (en) Hinge device for casing
US5894635A (en) Hinge device
US7451522B2 (en) Hinge
US6775884B2 (en) Clip-type friction hinge device
EP0374721A2 (en) Joint device for connecting two rotatable members
JP3131417B2 (en) Rotation mechanism of temple with respect to bracket and glasses
US6507977B2 (en) Computer hinge
US20030041413A1 (en) Rotating shaft with radial press device
US20030126719A1 (en) Anti-lock turning shaft for positive and reverse turning on a single element
US20130219661A1 (en) Rotating mechanism and electronic device with same
EP0990083A2 (en) Friction hinge with detent capability
US20030221290A1 (en) Pivot hinge
US7584525B2 (en) Hinge assembly
EP1113136B1 (en) Hinge assembly
KR200170419Y1 (en) Positioning pivot
JP2001107941A (en) Tilt hinge
US20090013498A1 (en) Hinge Assembly
KR200247311Y1 (en) Positioning pivot
KR100330065B1 (en) Hinge assembly of L.C.D monitor

Legal Events

Date Code Title Description
FPAY Fee payment

Year of fee payment: 4

FEPP Fee payment procedure

Free format text: PAT HOLDER NO LONGER CLAIMS SMALL ENTITY STATUS, ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: STOL); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

FPAY Fee payment

Year of fee payment: 8

REMI Maintenance fee reminder mailed
REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362

FP Lapsed due to failure to pay maintenance fee

Effective date: 20130424